Track guide means for jumbo shaft drills



N 1965 D. F. SAMHAMMER ETAL 3,

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April 7, 1958 3Sheets-Sheet 1 r /67 m A529 Fig.1.

f 26 2d 2/ /200 l' 1 n w E IHI I.

1965 D. F. SAMHAMMER ETAL 3, ,837

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April 7. 1958 3Sheets-Sheet 2 Tmi. Z. I /9.0

N v E N TO Rs Dan 44 2 Avian/Momma BY feoeyza'. bz-wmn 16, 1955 b. F.SAMHAMMER ETAL 3, 7

TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Original Filed April '7, 1958 3Sheets-Sheet 5 Z05 INVENTORS Dav/up FJivM/MMMA'R ATTORNEY United StatesPatent 3,217,837 TRACK GUIDE MEANS FOR JUMBO SHAFT DRILLS Donald F.Samhammer and George E. Hepola, Utica, N.Y., assignors to ChicagoPneumatic Tool Company, Chicago, Ill., a corporation of New JerseyOriginal application Apr. 7, 1958, Ser. No. 726,927, now Patent No.3,061,023, dated Oct. 30, 1962. Divided and this application May 28,1962, Ser. No. 208,158

4 Claims. (Cl. 187-95) This invention is a division of an applicationbearing Serial No. 726,927, filed April 7, 1958, and now issued asPatent No. 3,061,023. It relates to jumbo size drill apparatus of a typewhich finds particular use in drilling in rock deep vertical shafts ofrelatively wide diameter, which carries a number of boom-drill sets forthis purpose, and which is adapted to be lifted, lowered or moved aboutby a hoist. More particularly, this invention is concerned with animproved jumbo size drill apparatus of this nature which has variousdesirable features and consequent advantages. The apparatus of thepresent invention is adapted to dig a hole some 22 feet in diameter and2,000 feet and more, deep. It is adapted to be moved down into the shaftas the shaft deepens.

A feature of the invention lies in the general overall construction ofthe apparatus whereby a safe and practical structure of this nature isprovided.

A general object of this invention is to provide an improved shaft jumbodrill apparatus which reduces the common hazards of such structures to aminimum.

A particular feature of the center column is a cap which seals its topend and is associated with a clevis, whereby in hoisting operations theload of the apparatus and the pull of the hoist is sustained by thiscap.

The invention further lies in the general construction of its componentparts and also in their cooperative association with one another toeffect the results intended herein.

The foregoing and other features, objects and advantages of theinvention will appear more fully hereinafter from a consideration of thedetailed description which follows, taken together with the accompanyingdrawings wherein an embodiment of the invention is illustrated. It is tobe expressly understood, however, that the drawings are for purposes ofillustration and description, and are not to be construed as definingthe limits of the invention.

In the drawings:

FIGURE 1 is a view of the shaft jumbo drill apparatus in end elevationas viewed from the left end of FIG. 4.

FIG. 2 is a top plan of the deck.

FIG. 3 is a side elevational view of the deck section.

FIG. 4 is a bottom plan of the deck showing sections at different levelsof the association of the mounting assemblies with the deck.

FIG. 5 is a detail section taken on line 55 of FIG. 2.

Reference is now directed to the several drawings wherein there is showna jumbo size drill apparatus embodying the invention, which findsparticular use in drilling into rock deep vertical shafts of substantialdiameter. The apparatus includes a main supporting structure 20 having ahorizontally disposed platform or deck 21 mounted cen trally atop anelongated vertical center post or column 22. The deck supports at itsunderside a plurality of pressure fluid operated boom-drill sets 24,here, four in number, one of which is shown in FIG. 1. The supportingstructure 20 serves to support various pressure fluid supply devices forsupplying operating fluid to the several boomdrill sets. A clevis 26projecting vertically above the deck from the center of the supportingstructure 20 is engageable by a hoist whereby the entire apparatus,together with the various members supported by it, may be lifted,lowered or ported and located where desired.

"ice

Here, the deck 21 is rectangular in form, having a rec tangular floor orupper plate 27 which is fixed to an under-frame and has an anti-skidsurface. The underframe has side and end supporting channel members,respectively 29 and 28, and diagonally extending channel members 31. Thedeck is further strengthened by a pair of spaced end or lower plates 32fixed to the undersides of the several channel members. The centercolumn 22 is a hollow cylinder sealed over at opposite ends by plates 33and 34 fixed thereto. Plate 34 caps the top of the column. It isrelatively thick and rectangular in form. It is fixed to the centerunderside of the floor plate 27. The clevis 26, which is fixed to thetop of cap plate 34, projects above the floor plate 27 through a smallhole 30 in the latter. The clevis includes a cross pin 36 to which ahoist cable may be anchored. The diagonal channel members 31 are fixedat their inner ends in abutting relation to the outer surface of thecenter column. Gussets 37 fixed to the diagonal channel members and tothe outer surface of the center column further strengthen theassociation of the latter and the deck to one another.

Referring to FIGS. 1, 2, 3, 4 and 5, cross heads 198 are employed as ameans for guiding the entire apparatus as it is entered into or liftedout of a shaft. The cross heads are arranged about the top end of thelatter. These include a pair of opposed vertical runners or tracks 199arranged at the open end of the shaft. The deck 21 supports off thecenter of each of the longer sides thereof a vertical channel member200. Each of the latter is adapted to ride over one of the tracks as theapparatus is lifted out of or lowered into the shaft.

Each channel is supported to the deck and held in spaced relationthereto by a pair of gussets 201. Each of the latter is fixed along avertical outer edge 202 to the spine 203 of the channel. The oppositeouter edges of the gussets are each centrally formed with asubstantially square notch or cut-out 204 in which the adjacent side ofthe deck is received. The lower edges 205 of the cutouts underlie andare welded to narrow longitudinal bottom plates 206. The latter arefixed between the end plates 32 to the underside of the frame members29. The upper edges 207 of the cut-outs of the gussets overlie and arewelded to the deck plate 27 Each channel is further made secure to thedeck by a lateral extension 208 of the associated bottom plate 206 whichfills the area between the gussets. A hole 209 is provided in thisextension to permit passage of hose lines or the like, as appears inFIGS. 1 and 4.

While an embodiment of the invention has been illustrated and describedin detail, it is to be expressly understood that the invention is notlimited thereto, and it is our intent, therefore, to claim the inventionnot only as shown and described but also in all such forms andmodifications thereof as may be reasonably construed to fall within thespirit of the invention and the scope of the appended claims.

What is claimed is:

1. In a jumbo shaft drill apparatus of the character described includinga rectangular work platform having work drills depending from itsunderside and having means at its center for engagement with the cableof a hoist whereby the platform may be lowered and raised in a shaft inwhich shaft a pair of vertical stationary tracks is disposed in spacedrelation to the center of opposite sides of the platform, a pair ofelongated vertical guide channel members each slidably engaging aseparate one of the tracks, and plate means rigid with opposite sides ofthe platform rigidly supporting the guide channels in spaced relation tothe said sides of the platform, each guide channel having a verticalback wall, the plate means at each of said opposite sides comprising apair of upright gussets plates each having an outer upright edge fixedin close relation to the other to the rear of the back wall of therelated guide channel, the said pair of gusset plates diverging towardthe platform away from the said back wall and each having an under edgeportion overlying and secured to a marginal surface area of theplatform, whereby an enclosure of general triangular configuration isdefined upon the platform between the diverging gusset plates, and therebeing disposed in the enclosure hydraulic supply and return linesassociated with the drills.

2. In a jumbo shaft drill apparatus as in claim 11, wherein each guidechannel is elongated and extends below as well as above the level of theplatform, each gusset plate has a portion depending below the platformcorresponding to that portion extending above the platform, and the saidunder edge portion of each gusset plate is defined by the upper edge ofa U-cutout formed centrally of an inner edge of the gusset plate, andthe lower edge of said cutout is aflixed to the underside of theplatform, whereby an apron is defined below the platform between thedepending portions of the gusset plates rearwardly of the related guidechannel, lower portions of said supply and return lines being disposedin the apron.

3. In a jumbo shaft drill apparatus as in claim 2, wherein a cutout isprovided between the gusset plates immediately to the rear of a relatedguide channel serving as a passage for drill feed piping from above theplatform to the underside of the platform, whereby such piping isconfined behind the guide channel between the related gusset plates.

4. In a jumbo shaft drill apparatus of the character described includinga rectangular work platform having means at its center for engagementwith the cable of a hoist whereby the platform may be lowered and raisedin a drill shaft in which is disposed a pair of opposed verticalstationary tracks, means for guiding the hoist for sliding movement upand down the tracks and providing a protective shield for a workman onthe platform against his toppling into the shaft over the Sides of theplatform, the said means comprising a pair of elongated verticalchannels disposed one to each of opposite sides of the platform and inspaced relation thereto, and a pair of upright plates associated witheach channel, the plates being secured to and extending upwardly fromthe surface of the platform in lateral spaced relation to each other andconverging toward and having their outer edges secured to the relatedchannel, the space defined between the plates rearwardly of the channeldefining a protective enclosure of general triangular configuration fora workman on the platform.

References Cited by the Examiner UNITED STATES PATENTS 744,233 11/1903Read 187-96 X 927,774 7/ 1909 Dahl 187-96 X 944,113 12/1909 Templer187-95 983,120 1/1911 Bryant 187-96 X 1,005,837 10/1911 Hofl'er l87-951,252,122 1/1918 Jewell 187-96 1,485,302 2/1924 Sharp 187-95 1,539,3445/1925 Adam 187-2 1,899,751 2/1933 Dunlop 187-95 1,905,248 4/1933 Skaife187-95 1,931,237 10/1933 OConnell 187-95 2,246,732 6/1941 Hymans 187-12,308,210 1/1943 Sahlin 187-95 2,781,140 2/1957 Cryderman 214-657 SAMUELF. COLEMAN, Primary Examiner.

RALPH H. BRAUNER, Examiner.

1. IN A JUMBO SHAFT DRILL APPARATUS OF THE CHARACTER DESCRIBED INCLUDINGA RECTANGULAR WORK PLATFROM HAVING WORK DRILLS DEPENDING FROM ITSUNDERSIDE AND HAVING MEANS AT ITS CENTER FOR ENGAGEMENT WITH THE CABLEOF A HOIST WHEREBY THE PLATFORM MAY BE LOWERED AND RAISED IN A SHAFT INWHICH SHAFT A PAIR OF VERTICAL STATIONARY TRACKS IS DISPOSED IN SPACEDRELATION TO THE CENTER OF OPPOSITE SIDES OF THE PLATFROM, A PAIR OFENLONGATED VERTICAL GUIDE CHANNEL MEMBERS EACH SLIDABLY ENGAGING ASEPARATE ONE OF THE TRACKS, AND PLATE MEANS RIGID WITH OPPOSITE SIDES OFTHE PLATFROM RIGIDLY SUPPORTING THE GUIDE CHANNELS IN SPACED RELATION TOTHE SAID SIDES OF THE PLATFORM, EACH GUIDE CHANNEL HAVING A VERTICALBACK WALL, THE PLATE MEANS AT EACH OF SAID OPPOSITE SIDES COMPRISING APAIR OF UPRIGHT GUSSETS PLATES EACH HAVING AN OUTER UPRIGHT EDGE FIXEDIN CLOSE RELATION TO THE OTHER TO THE REAR OF THE BACK WALL OF THERELATED GUIDE CHANNEL, THE SAID PAIR OF GUSSET PLATES DIVERGING TOWARDTHE PLATFORM AWAY FROM THE SAID BACK WALL AND EACH HAVING AN UNDER EDGEPORTION OVERLYING AND SECURED TO A MARGINAL SURFACE AREA OF THEPLATFORM, WHEREBY AN ENCLOSURE OF GENERAL TRIANGULAR CONFIGURATION ISDEFINED UPON THE PLATFROM BETWEEN THE DIVERGING GUSSET PLATES, AND THEREBEING DISPOSED IN THE ENCLOSURE HYDRAULIC SUPPLY AND RETURN LINESASSOCIATED WITH THE DRILLS.